Home / 207,002.43-310,503.63-66,761.06

Finding the Fourth Proportional to 207,002.43, 310,503.63 and 66,761.06

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Solution

The fourth proportional to 207,002.43, 310,503.63 and 66,761.06 is: 100,141.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,002.43 : 310,503.63 = 66,761.06 : x
  2. Step 2: Convert to fraction form
    207,002.43/310,503.63 = 66,761.06/x
  3. Step 3: Cross multiply
    207,002.43x = 310,503.63 × 66,761.06
  4. Step 4: Simplify right side
    207,002.43x = 20,729,549,920.13
  5. Step 5: Solve for x
    x = 20,729,549,920.13/207,002.43
  6. Step 6: Final answer
    x = 100,141.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.